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Lysimachia ciliata
Also called Fringed Yellow Loosestrife, Ciliate Loosestrife
Fringed loosestrife is an erect, clump-forming perennial with star-shaped yellow flowers in midsummer, native to much of North America. It is easy to grow in moist soil but can spread aggressively by suckers, so removing new shoots keeps it in check.
Lysimachia ciliata, the fringed loosestrife, is a species of flowering plant in the family Primulaceae. It is an erect herbaceous perennial growing to 120 cm (47 in) tall and 60 cm (24 in) broad, with opposite, simple leaves, and smooth green stems. The star-shaped yellow flowers are borne in midsummer. It is native to North America, including most of southern Canada and most of the United States except for the southwest. This plant is notable in that it is one of the few species of Lysimachia to bear elaiophores, that is, to offer oil instead of nectar as a reward to pollinators. It is pollinated in the northern part of its range by the specialist oil bee Macropis nuda, a native bee species whose survival depends upon this host plant.
It is also cultivated as an ornamental plant. It can be aggressive, but new suckers can be removed easily to keep plant size under control.
Lysimachia monelli · Pimpernel · Scarlet pimpernel · Manchurian yellow loosestrife · Gooseneck yellow loosestrife · Dense Flowered Loosestrife · Lysimachia ephemerum · Sea-milkwort · Creeping jenny · Dotted Loosestrife · Yellow Loosestrife
Text excerpted from the Wikipedia article Lysimachia ciliata by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
